1 files changed, 9 insertions, 3 deletions

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index ccb4dbf359c4..b491576e11c3 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -127,10 +127,11 @@ struct mpage_da_data {
         int pages_written;
         int retval;
 };
-
+#define DIO_AIO_UNWRITTEN       0x1
 typedef struct ext4_io_end {
+        struct list_head        list;           /* per-file finished AIO list */
         struct inode            *inode;         /* file being written to */
-        unsigned int            flag;           /* sync IO or AIO */
+        unsigned int            flag;           /* unwritten or not */
         int                     error;          /* I/O error code */
         ext4_lblk_t             offset;         /* offset in the file */
         size_t                  size;           /* size of the extent */
@@ -690,6 +691,11 @@ struct ext4_inode_info {
         __u16 i_extra_isize;
 
         spinlock_t i_block_reservation_lock;
+
+        /* completed async DIOs that might need unwritten extents handling */
+        struct list_head i_aio_dio_complete_list;
+        /* current io_end structure for async DIO write*/
+        ext4_io_end_t *cur_aio_dio;
 };
 
 /*
@@ -1419,7 +1425,7 @@ extern int ext4_block_truncate_page(handle_t *handle,
                 struct address_space *mapping, loff_t from);
 extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
 extern qsize_t ext4_get_reserved_space(struct inode *inode);
-
+extern int flush_aio_dio_completed_IO(struct inode *inode);
 /* ioctl.c */
 extern long ext4_ioctl(struct file *, unsigned int, unsigned long);
 extern long ext4_compat_ioctl(struct file *, unsigned int, unsigned long);